Question #7a9f4

1 Answer
David G.
Dec 24, 2017

The frequency number of #N# in this equation is 2: it appears once on each side of the equation.

Explanation:

'Frequency number' is not a method of balancing chemical equations that I am very familiar with, but I found a textbook that uses it. The goal is to find the 'frequency number' for all the elements in the equation, and then start balancing from the one with the lowest frequency number.

This chemical equation is already balanced as written: 2 nitrogen atoms on each side and 6 hydrogen atoms on each side.

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